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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-321.988602
Energy at 298.15K-321.997988
HF Energy-321.988602
Nuclear repulsion energy249.108687
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3956 3594 58.38      
2 A 3833 3482 50.01      
3 A 3264 2966 41.99      
4 A 3247 2950 36.63      
5 A 3218 2924 20.17      
6 A 3182 2891 20.36      
7 A 3165 2876 46.39      
8 A 1976 1796 789.06      
9 A 1784 1621 151.55      
10 A 1657 1506 2.61      
11 A 1620 1472 0.77      
12 A 1601 1455 5.40      
13 A 1572 1428 18.95      
14 A 1532 1392 26.90      
15 A 1472 1337 492.48      
16 A 1427 1296 1.65      
17 A 1289 1171 6.24      
18 A 1269 1153 81.47      
19 A 1217 1106 123.77      
20 A 1191 1082 14.13      
21 A 1061 964 5.72      
22 A 938 852 11.67      
23 A 900 818 0.56      
24 A 863 784 52.22      
25 A 635 577 17.65      
26 A 604 548 7.00      
27 A 555 504 69.97      
28 A 407 370 2.62      
29 A 355 322 186.59      
30 A 276 251 0.66      
31 A 230 209 2.97      
32 A 99 90 0.11      
33 A 90 82 2.90      

Unscaled Zero Point Vibrational Energy (zpe) 25241.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 22934.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/TZVP
ABC
0.30156 0.07199 0.05951

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.576 -0.101 -0.115
H2 -2.693 -1.174 -0.025
H3 -3.350 0.390 0.464
H4 -2.684 0.179 -1.157
C5 -1.208 0.316 0.397
H6 -1.105 1.389 0.298
H7 -1.102 0.034 1.441
O8 -0.214 -0.366 -0.370
N9 1.576 1.111 -0.192
H10 1.130 1.791 0.396
H11 2.551 1.084 0.038
C12 1.071 -0.169 -0.063
O13 1.776 -1.102 0.193

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08281.08491.08401.51962.13442.14792.39024.32604.19255.26493.64844.4767
H21.08281.76631.76382.14593.03222.47812.62964.84474.85625.71003.89624.4750
H31.08491.76631.76562.14482.46272.47683.33215.02154.69445.95754.48795.3464
H41.08401.76381.76562.14752.46443.04502.64814.46584.42185.44533.92634.8326
C51.51962.14592.14482.14751.08201.08691.42882.95412.76403.85352.37523.3105
H62.13443.03222.46272.46441.08201.77242.07862.73942.27303.67842.70083.8106
H72.14792.47812.47683.04501.08691.77242.05703.31643.02704.05222.65153.3374
O82.39022.62963.33212.64811.42882.07862.05702.32792.65483.14931.33642.1959
N94.32604.84475.02154.46582.95412.73943.31642.32791.00311.00261.38182.2557
H104.19254.85624.69444.42182.76402.27303.02702.65481.00311.62762.01402.9721
H115.26495.71005.95755.44533.85353.67844.05223.14931.00261.62761.94172.3248
C123.64843.89624.48793.92632.37522.70082.65151.33641.38182.01401.94171.1976
O134.47674.47505.34644.83263.31053.81063.33742.19592.25572.97212.32481.1976

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.093 C1 C5 H7 109.873
C1 C5 O8 108.287 H2 C1 H3 109.139
H2 C1 H4 108.977 H2 C1 C5 109.956
H3 C1 H4 108.991 H3 C1 C5 109.746
H4 C1 C5 110.008 C5 O8 C12 118.362
H6 C5 H7 109.613 H6 C5 O8 111.006
H7 C5 O8 108.950 O8 C12 N9 117.818
O8 C12 O13 120.023 N9 C12 O13 121.808
H10 N9 H11 108.488 H10 N9 C12 114.296
H11 N9 C12 107.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 H 0.096      
3 H 0.080      
4 H 0.099      
5 C 0.015      
6 H 0.092      
7 H 0.065      
8 O -0.257      
9 N -0.439      
10 H 0.235      
11 H 0.256      
12 C 0.459      
13 O -0.460      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.731 4.827 -0.551 5.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.365 -6.413 1.037
y -6.413 -36.818 -1.351
z 1.037 -1.351 -36.290
Traceless
 xyz
x 0.189 -6.413 1.037
y -6.413 -0.491 -1.351
z 1.037 -1.351 0.302
Polar
3z2-r20.604
x2-y20.453
xy-6.413
xz1.037
yz-1.351


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.951 0.392 -0.058
y 0.392 6.821 -0.047
z -0.058 -0.047 5.279


<r2> (average value of r2) Å2
<r2> 189.641
(<r2>)1/2 13.771